Boise February 21 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of February 21.
February 21 All-Time Records
1911–2024
Highest temperature 63 °F 1991
Lowest temperature 14 °F 1955
Lowest daily high 29 °F 1957
Highest daily low 45 °F 1925
Most precipitation 0.72 inches 1948
Most snow 1.9 inches 1993
February 21 Average Weather
1991–2020 1
Average high 47.7 °F
Average low 29.8 °F
Chance precipitation 33.9%
Chance snow 12.1%
Boise February 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2024 53 34 0.00 0.0
2023 51 27 0.00 0.0
2022 40 24 0.00 0.0
2021 44 24 0.00 0.0
2020 45 23 0.00 0.0
2019 33 20 0.07 1.2
2018 37 22 0.00 0.0
2017 56 39 0.00 0.0
2016 52 33 0.00 0.0
2015 49 27 0.00 0.0
2014 50 31 0.00 0.0
2013 43 20 0.00 0.0
2012 47 34 0.25 0.0
2011 41 25 0.00 0.0
2010 40 26 0.00 0.0
2009 52 29 0.00 0.0
2008 46 29 0.00 0.0
2007 40 32 0.05 0.7
2006 37 23 0.00 0.0
2005 42 31 0.00 0.0
2004 43 24 0.00 0.0
2003 53 42 0.00 0.0
2002 51 33 0.00 0.0
2001 49 37 0.09 0.0
2000 61 40 0.00 0.0
1999 45 32 0.11 0.4
1998 51 36 0.29 0.0
1997 45 23 0.00 0.0
1996 58 34 0.00 0.0
1995 60 35 0.00 0.0
1994 43 28 0.04 0.3
1993 37 24 0.11 1.9
1992 48 37 0.07 0.0
1991 63 35 0.00 0.0
1990 45 27 0.04 0.4
1989 44 26 0.00 0.0
1988 60 30 0.00 0.0
1987 45 25 0.00 0.0
1986 48 34 0.10 0.0
1985 40 20 0.00 0.0
1984 34 18 0.15 1.5
1983 55 40 0.02 0.0
1982 58 37 0.08 0.0
1981 49 25 0.00 0.0
1980 42 34 0.06 0.4
1979 46 31 0.02 0.0
1978 48 32 0.00 0.0
1977 50 32 0.11 0.0
1976 44 26 0.00 0.0
1975 35 21 0.00 0.0
1974 49 34 0.06 0.4
1973 47 28 0.00 0.0
1972 55 32 0.00 0.0
1971 47 29 0.00 0.0
1970 52 29 0.00 0.0
1969 37 31 0.03 0.0
1968 50 40 0.47 0.0
1967 45 23 0.00 0.0
1966 51 28 0.00 0.0
1965 56 31 0.00 0.0
1964 42 20 0.00 0.0
1963 53 33 0.00 0.0
1962 41 23 0.00 0.0
1961 58 38 0.01 0.0
1960 41 28 0.00 0.0
1959 48 30 0.00 0.0
1958 62 34 0.00 0.0
1957 29 16 0.17 1.2
1956 57 43 0.00 0.0
1955 36 14 0.00 0.0
1954 58 31 0.01 0.0
1953 40 17 0.00 0.0
1952 31 19 0.00 0.0
1951 38 29 0.01 0.1
1950 42 24 0.00 0.0
1949 45 35 0.00 0.0
1948 44 32 0.72 0.0
1947 52 30 0.00 0.0
1946 42 33 0.25 0.0
1945 39 20 0.00 0.0
1944 44 29 0.00 0.0
1943 51 32 0.07 0.0
1942 36 22 0.04 0.5
1941 56 33 0.10 0.0
1940 42 23 0.00 0.0
1939 42 17 0.00 0.0
1938 44 33 0.00 0.0
1937 35 25 0.03 0.5
1936 46 34 0.42 0.0
1935 52 28 0.02 0.0
1934 54 32 0.03 0.0
1933 46 34 0.01 0.0
1932 n/a 18 0.00 0.0
1931 51 27 0.01 0.0
1930 58 31 0.00 0.0
1929 44 30 0.04 0.0
1928 42 27 0.19 n/a
1927 56 39 0.00 0.0
1926 48 31 0.17 0.0
1925 55 45 0.06 0.0
1924 52 37 0.31 0.0
1923 55 26 0.00 0.0
1922 41 31 0.01 0.1
1921 46 30 0.04 0.0
1920 40 28 0.03 0.3
1919 42 26 0.00 0.0
1918 44 25 0.00 0.0
1917 45 23 0.15 0.5
1916 51 26 0.00 0.0
1915 46 36 0.08 0.0
1914 56 41 0.08 0.0
1913 38 18 0.00 0.0
1912 45 29 0.00 0.0
1911 39 19 0.00 0.0
What's the all-time high for Boise on 2/21?
For the date of Feb 21, the highest temperature ever reached in Boise history is 63 °F which happened in 1991.
Highest Temperatures in Boise on February 21
Rank Temperature Year
1 63 °F 1991
2 62 °F 1958
3 61 °F 2000
4 60 °F 1988
4 60 °F 1995
6 58 °F 1954
6 58 °F 1930
6 58 °F 1961
6 58 °F 1996
6 58 °F 1982
What's the all-time low for Boise on 2/21?
For the date of Feb 21, the lowest temperature ever reached in Boise history is 14 °F which happened in 1955.
Lowest Temperatures in Boise on February 21
Rank Temperature Year
1 14 °F 1955
2 16 °F 1957
3 17 °F 1939
3 17 °F 1953
5 18 °F 1984
5 18 °F 1913
5 18 °F 1932
8 19 °F 1952
8 19 °F 1911
10 20 °F 2019
10 20 °F 1945
10 20 °F 1964
10 20 °F 2013
10 20 °F 1985
Lowest High Temperatures in Boise on February 21
Rank Temperature Year
1 29 °F 1957
2 31 °F 1952
3 33 °F 2019
4 34 °F 1984
5 35 °F 1937
5 35 °F 1975
7 36 °F 1942
7 36 °F 1955
9 37 °F 1969
9 37 °F 1993
9 37 °F 2006
9 37 °F 2018
What's the most it has ever rained in Boise on 2/21?
For the date of Feb 21, the most precipitation ever recorded in Boise history is 0.72 inches which happened in 1948.
All-Time Most Precipitation in Boise on February 21
Rank Precipitation Year
1 0.72 inches 1948
2 0.47 inches 1968
3 0.42 inches 1936
4 0.31 inches 1924
5 0.29 inches 1998
6 0.25 inches 2012
6 0.25 inches 1946
8 0.19 inches 1928
9 0.17 inches 1957
9 0.17 inches 1926
All-Time Most Snow in Boise on February 21
Rank Precipitation Year
1 1.9 inches 1993
2 1.5 inches 1984
3 1.2 inches 2019
3 1.2 inches 1957
5 0.7 inches 2007
6 0.5 inches 1937
6 0.5 inches 1917
6 0.5 inches 1942
9 0.4 inches 1999
9 0.4 inches 1974
9 0.4 inches 1980
9 0.4 inches 1990
Weather Station Details
Years Station Coordinates
1940–2024 location
1911–1939 Meridian 1 W location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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